3 Bedroom Apartments for Rent in St Marys, ON (31 Rentals)

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Roommate Matching: Finding the Right Fit and Avoiding Pitfalls

When searching for a roommate, follow this list of essential steps and set clear expectations to create a solid foundation for a harmonious living situation.

The Art of the Rental Viewing: What to look for during a property tour

Touring a rental? This guide helps you know exactly what to look for, from safety features to hidden flaws, so you can confidently sign your lease or keep searching.

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Ridout Towers
$1,8493 Bedroom Apartments Available Now

Ridout Towers

100 Ridout St SLondon, ON N6C 3X5
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Parkdale Place
$1,8993 Bedroom Apartments Available Now

Parkdale Place

1201 Richmond St NLondon, ON N6A 3L3
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Trillium Towers I/II
$1,6653 Bedroom Apartments Available Now

Trillium Towers I/II

680-690 Wonderland Rd NLondon, ON N6H 4V3
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Smart Renter's Guide: Calculating Affordable Rent & Housing Costs

Wondering how to determine your rental budget? This comprehensive guide covers everything from the 30% rule to hidden fees and effective budgeting strategies.

property at 11 Tidey St

$2,500

3 Bedroom Rentals

Available Now

11 Tidey St

NorwichONN0J 1P0
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520 Parkside Dr
3 Bedroom Apartments

520 Parkside Dr

520 Parkside DrWaterloo, ON N2L 4X7
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Kappele Circle
3 Bedroom Apartments

Kappele Circle

15-25 Kappele CirStratford, ON N5A 6X4
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939 Western
3 Bedroom Apartments

939 Western

939 Western RdLondon, ON N6G 1B3
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Sunnydale
3 Bedroom Apartments

Sunnydale

519-529 Sunnydale PlWaterloo, ON N2L 4S9
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Navigating the Rental Market: Tips for First-Time Renters

Entering the rental market? Learn these simple tips and strategies to avoid common pitfalls and make confident choices. Rent with peace of mind.

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Aqui on King
3 Bedroom Apartments

Aqui on King

131 King StLondon, ON N6A 0E8
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Beacon Tower
3 Bedroom Apartments

Beacon Tower

25 Westmount RdWaterloo, ON N2L 5G7
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Park Place
$2,9753 Bedroom Apartments

Park Place

75-81 York StKitchener, ON N2G 1T6

St Marys, ON Local Guide

Largest Available St Marys and Nearby 3 Bedroom Apartments

The largest available 3 Bedroom apartment unit in St Marys, ON is found at 190 Cherryhill Cir and is 1,830 square feet priced from $2,799. Centro has the second largest 3 Bedroom, which is sized at 1,606 square feet and currently listed start at $4,329. Here is today’s list of the largest available 3 Bedroom units in St Marys:

Apartment ListingModel NameSquare FootagePriced From
190 Cherryhill CirThree Bedroom Pent House1,830 Sq Ft$2,799
CentroEclipse1,606 Sq Ft$4,329
Sunnydale3 Bedroom(s) and 1.5 Bathroom(s)1,500 Sq Ft$2,500
Trillium Towers I/II3 Bedroom1,430 Sq Ft$1,665
675 Richmond3 Bedroom1,386 Sq Ft$2,299
Clarence Square3 Bed, 2 Bath - Dundas Penthouse1,374 Sq Ft$3,800
Revo on King StThree Bedroom1,265 Sq Ft$1,825
Somerset Place Apartments3 Bed 1.5 Bath A1,250 Sq Ft$2,495
Parkdale Place3 Bedroom1,095 Sq Ft$1,899
SOHOSQ RentalsSO3B011,022 Sq Ft$2,749

Cheapest Available St Marys and Nearby 3 Bedroom Apartments

As of January 14, 2026 the lowest priced 3 Bedroom apartment unit in St Marys, ON is the 3 Bedroom Model starting from $1,665 at Trillium Towers I/II . The second most affordable St Marys 3 Bedroom is the Three Bedroom Model at Revo on King St starting at $1,825 . The average price for all 3 Bedroom apartments in St Marys is currently $2,594. Here is today’s list of the cheapest available 3 Bedroom options in St Marys:

Apartment ListingModel NamePriced From
Trillium Towers I/II3 Bedroom$1,665
Revo on King StThree Bedroom$1,825
Ridout Towers3 Bedroom$1,849
Parkdale Place3 Bedroom$1,899
The Mayfair3 Bedroom - 1 Bathroom Suites$2,273
675 Richmond3 Bedroom$2,299
939 Western939 Western - Plan A$2,399
Somerset Place Apartments3 Bed 1.5 Bath A$2,495
Sunnydale3 Bedroom(s) and 1.5 Bathroom(s)$2,500
SOHOSQ RentalsSO3B02$2,749

Don't Settle: How to Negotiate Your Apartment Lease and Save Money

Discover the insider tips from an attorney and real estate agent on how to negotiate your next apartment lease. Find out what's on the table and what's not, so you can save money and get the best terms possible.

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The Ultimate Long-Distance Moving Checklist: Tips from a Real Estate Pro

Moving is tough, especially long-distance. Learn how to minimize stress & expenses with proven strategies from a real estate pro, covering everything from logistics to finances.

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Cash or credit? Understanding the Importance of Credit Score in Real Estate and Renting

Discover how your credit score impacts your ability to lease or buy a home. Learn how credit scores are determined, how to check yours, and strategies to improve it for real estate success.

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Quick Rent Budget Calculator

How much rent can you afford?

The common "Rule of Thumb" is that rent should be no more than 30% of your income. How much is that? Enter your monthly income and click "Calculate My Budget" to find out.

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Remember the 3 Rules of Real Estate:
Location, Location, Location!

Explore St Marys, ON Rentals by Map

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Frequently Asked Questions about 3 Bedroom St Marys Apartments

What is the Cheapest apartment in St Marys with 3 Bedroom?

Currently the most affordable 3 Bedroom in St Marys is at Trillium Towers I/II listed at $1,665.

How much is the average rent for a 3 Bedroom St Marys Apartment?

The average rent for a 3 Bedroom Apartment in St Marys is $2,594.

What is the largest available 3 Bedroom St Marys Apartment for rent?

Today's apartment with the most square footage in St Marys is a 1,830 square feet unit starting from $2,799 at 190 Cherryhill Cir.

What is the average size for St Marys 3 Bedroom Apartments for rent?

The average size for a 3 Bedroom rental in St Marys is currently 1,800 sq ft.

Expert Rental Resources

The rental experts at ApartmentHomeLiving.com provide you with top advice, tools, and tips for understanding the leasing process and finding the perfect rental. Here are a few helpful rental and leasing articles from our experts to guide you on your search.

Articles, How-To's, and Tips

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Renting with Roommates: Realistic Expectations for Shared Lease

Written by: Christine Leonard, Esq.

Given the high costs for housing, I have found that many people are looking for a roommate to share expenses. These arrangements can increase opportunities for more desirable and larger spaces.

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A Renters Guide for Tips on Writing Your Notice for Not Renewing Your Apartment

Written by: Bob Mallory

Packing up everything you own to move is so stressful for many that ending your apartment lease can feel like a small or unimportant task. Ending your lease involves more than simply turning over your keys on the last day.

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Apartment Common Area Rules: What Renters Need to Know

Written by: Christine Leonard, Esq.

Back in the day when I rented one of my first apartments, the property didn’t even have laundry in the building. Now, rental properties are often competing against each other to provide the best amenities.

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How to Negotiate Your Apartment Lease and Save Money

Written by: Christine Leonard, Esq.

Everything is a negotiation in real estate!